Jacquelyn R. Overbeck
Kara S. Doran
20150425
National Assessment of Hurricane-Induced Coastal Erosion Hazards: Southeast Atlantic Miami to Jupiter, Florida Raw (non-interpolated) Beach Slope Point Data
tabular digital data
U.S. Geological Survey Data Release
doi:10.5066/F72805P1
St. Petersburg, FL
U.S. Geological Survey
https://doi.org/10.5066/F72805P1
The National Assessment of Coastal Change Hazards project derives beach morphology features from lidar elevation data for the purpose of understanding and predicting storm impacts to our nation's coastlines. This dataset defines beach slopes along the United States Southeast Atlantic Ocean from Miami to Jupiter, Florida for data collected at various times between 1999 and 2009.
To provide raw, non-interpolated endpoint slope data between the location of the Mean High Water and seaward-most dune toe elevations. This dataset, SFL_Raw_Slopes.txt, and others associated with this project can be accessed online at https://doi.org/10.5066/F72805P1.
The USGS Saint Petersburg Coastal and Marine Science Center (SPCMSC) - St. Petersburg, Fla., assigns a unique identifier (called a Field Activity Number, or FAN) to each cruise or field activity. The following FANs are associated with this activity: 99LTS04, 04CNT05, 04CNT01, 05CNT10, 07CNT02, 09CNT04
19991006
20091003
Ground condition
As needed. Data are updated when new lidar surveys are available.
-80.131078
-80.031151
27.034065
25.763333
USGS Metadata Identifier
USGS:ebedf638-fce7-46c3-a52f-4958edbbdbac
General
U.S. Geological Survey
USGS
St. Petersburg Coastal and Marine Science Center
Coastal and Marine Geology Program
CMGP
SPCMSC
ISO 19115 Topic Category
coastal
slope
environment
Data Categories for Marine Planning
distributions
bathymetry and elevation
Marine Realms Information Bank (MRIB) Keywords
altimetry
topographic mapping
USGS Thesaurus
LIDAR
topography
digital elevation models
General
United States of America
Atlantic Ocean
Florida
Miami, Florida
Jupiter, Florida
None
The U.S. Geological Survey requests to be acknowledged as originators of the data in future products or derivative research.
U.S. Geological Survey
Jacquelyn R. Overbeck
mailing and physical
600 4th Street South
Saint Petersburg
FL
33701
UNITED STATES
727-502-8104
727-502-8001
joverbeck@usgs.gov
Microsoft Windows 7 Version 6.1 (Build 7600); ESRI ArcGIS 10.2.2.4000; MATLAB R2014b
Data gaps exist where there are no sandy shorelines (such as over inlets, marshes, or rocky coasts). For each 400-meter window width, data will be given a null value if greater than 50% of points are missing. For inlets narrower than the 400 m window, only slopes associated with the data on either side of the inlet were computed. No additional checks for consistency were performed on this data.
These data include beach and dune morphology in the form of raw beach slopes.
Horizontal accuracy was not estimated.
Vertical accuracy for beach and dune morphology (dune crest and toe elevation) data is dependent on the positional accuracy of the lidar data. Estimated accuracy of lidar surveys is +/- 15 centimeters. However, vertical accuracies may vary based on the type of terrain (for example, inaccuracies may increase as slope increases or with the presence of extremely dense vegetation) and the accuracy of the GPS and aircraft-attitude measurements.
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)
United States Geological Survey (USGS)
National Aeronautics and Space Administration (NASA)
20141114
Fall 1999 East Coast NOAA/USGS/NASA Airborne Lidar Assessment of Coastal Erosion (ALACE) Project for the US Coastline
http://coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=8
Online digital data
19991006
19991104
The date when lidar surveys were conducted.
NOAA99
Lidar-derived elevation data collected by this source was used to estimate dune morphology variables.
Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX)
20141114
2004 US Army Corps of Engineers (USACE) Post-Hurricane Ivan Topo/Bathy Lidar: Alabama, Florida
http://coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=37
Online digital data
20041101
20041231
The dates when lidar surveys were conducted.
USACE04b
Lidar-derived elevation data collected by this source was used to estimate dune morphology variables.
Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX)
20141114
2004 US Army Corps of Engineers (USACE) Topo/Bathy Lidar: Alabama, Florida, Mississippi and North Carolina
ftp://coast.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/19
Online digital data
20040401
20040925
The dates when lidar surveys were conducted.
USACE04a
Lidar-derived elevation data collected by this source was used to estimate dune morphology variables.
Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX)
20141114
2006 US Army Corps of Engineers (USACE) East Coast Topo/Bathy Mapping Project for Florida, Georgia and South Carolina
http://coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=34
Online digital data
20051211
20060205
The dates when lidar surveys were conducted.
USACE06
Lidar-derived elevation data collected by this source was used to estimate dune morphology variables.
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)
Florida Division of Emergency Management (FDEM)
20150213
2007 - 2008 Florida Division of Emergency Management (FDEM) Lidar Project: Blocks 1 - 10 (Southeast Florida and Keys)
http://coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=520
Online digital data
20070712
20080208
The dates when lidar surveys were conducted.
FDEM07
Lidar-derived elevation data collected by this source was used to estimate dune morphology variables.
Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office for Coastal Management (OCM)
Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX)
20141114
2009 US Army Corps of Engineers (USACE) Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) Lidar: East Coast of Florida
http://coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=1072
Online digital data
20090831
20091003
The dates when lidar surveys were conducted.
USACE10
Lidar-derived elevation data collected by this source was used to estimate dune morphology variables.
For dune morphology data: Elevation data from lidar surveys were interpolated in MATLAB R2014b to a gridded domain that was rotated parallel to the shoreline and had a resolution of 10 m in the alongshore direction and 2.5 m in the cross-shore direction. The interpolation method applies spatial filtering with a Hanning window that is twice as wide as the grid resolution. Dune morphology data are extracted from the elevation grid in MATLAB. Beach slopes were extracted from endpoint locations of the Mean High Water and dune toe elevations. The beach slopes were temporally averaged then interpolated to 200 m alongshore resolution by filtering with a 400 m wide Hanning window.
More details on the methodology can be found in the USGS Open-File Report, "A method for determining average beach slope and beach slope variability for U.S. sandy coastlines", available at http://pubs.usgs.gov/of/2015/1053.
20150330
Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog.
20170124
U.S. Geological Survey
Alan O. Allwardt
Contractor -- Information Specialist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060
831-460-7551
831-427-4748
aallwardt@usgs.gov
Added keywords section with USGS persistent identifier as theme keyword.
20201013
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Point
Entity Point
6801
0.0197843295
0.0229959585
Decimal Degrees
D WGS 1984
WGS 1984
6378137.0
298.257223563
SFL_Raw_Slopes.txt
Lidar-derived beach slope. Measured as the endpoint slope between the locations of dune toe and Mean High Water elevation. Values of -999 represent "no data" values. Lidar-derived attributes collected over multiple days include "co" in the Attribute_Label. This abbreviation, combined days, is shortened to keep similar naming structure as data collected on a single day.
USGS
Longitude
Longitude of interpolated shoreline position in decimal degrees.
USGS
-80.131078
-80.031151
Decimal Degrees
Latitude
Latitude of interpolated shoreline position in decimal degrees.
USGS
25.763333
27.034065
Decimal Degrees
slope199910co
Raw beach slopes calculated using October 1999 lidar-derived elevation data.
USGS
0.020867
0.291138
Radians
slope041001
Raw beach slopes calculated using October 1, 2004 lidar-derived elevation data.
USGS
0.023309
0.330806
Radians
slope200411co
Raw beach slopes calculated using November 2004 lidar-derived elevation data.
USGS
0.019725
0.548231
Radians
slope200601co
Raw beach slopes calculated using January 2006 lidar-derived elevation data.
USGS
0.015322
0.939606
Radians
slope200707co
Raw beach slopes calculated using July 2007 lidar-derived elevation data.
USGS
0.01592
0.447125
Radians
slope200908co
Raw beach slopes calculated using August 2009 lidar-derived elevation data.
USGS
0.016194
0.367336
Radians
U.S. Geological Survey (USGS)
Jacquelyn R. Overbeck
mailing and physical
600 4th Street South
Saint Petersburg
FL
33701
727-502-8104
727-502-8001
joverbeck@usgs.gov
Although these data have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
text file
none
https://coastal.er.usgs.gov/data-release/doi-F72805P1/data/SFL_beach_slopes/SFL_Raw_slopes.txt
Data is accessible online at https://doi.org/10.5066/F72805P1
none
20201013
U.S. Geological Survey (USGS)
Jacquelyn R. Overbeck
mailing and physical
600 4th Street South
Saint Petersburg
FL
33701
UNITED STATES
727-502-8104
727-502-8001
joverbeck@usgs.gov
FGDC Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time